import 'dart:typed_data';
import 'dart:ui' as ui;
import 'package:flutter/material.dart';
// ignore: avoid_web_libraries_in_flutter
import 'dart:html' as html;

Future<void> platformViewPdf(BuildContext context, Uint8List bytes, {required String filename}) async {
  final blob = html.Blob([bytes], 'application/pdf');
  final url = html.Url.createObjectUrlFromBlob(blob);
  final viewType = 'pdf-view-${DateTime.now().microsecondsSinceEpoch}';
  final iframe = html.IFrameElement()
    ..src = url
    ..style.border = '0'
    ..style.width = '100%'
    ..style.height = '100%';
  // ignore: undefined_prefixed_name
  ui.platformViewRegistry.registerViewFactory(viewType, (int _) => iframe);

  await showDialog<void>(
    context: context,
    builder: (ctx) => Dialog(
      insetPadding: const EdgeInsets.all(16),
      child: SizedBox(
        width: 1000, height: 700,
        child: Stack(children: [
          HtmlElementView(viewType: viewType),
          Positioned(
            right: 8, top: 8,
            child: IconButton(
              tooltip: 'In neuem Tab öffnen',
              icon: const Icon(Icons.open_in_new),
              onPressed: () => html.window.open(url, '_blank'),
            ),
          ),
        ]),
      ),
    ),
  );
  html.Url.revokeObjectUrl(url);
}

Future<void> platformDownloadPdf(Uint8List bytes, {required String filename}) async {
  final blob = html.Blob([bytes], 'application/pdf');
  final url = html.Url.createObjectUrlFromBlob(blob);
  final a = html.AnchorElement(href: url)..download = filename;
  a.click();
  html.Url.revokeObjectUrl(url);
}